617479 has 2 divisors, whose sum is σ = 617480. Its totient is φ = 617478.

The previous prime is 617473. The next prime is 617509. The reversal of 617479 is 974716.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 617479 - 2³ = 617471 is a prime.

It is an Ulam number.

617479 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (617471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308739 + 308740.

It is an arithmetic number, because the mean of its divisors is an integer number (308740).

2⁶¹⁷⁴⁷⁹ is an apocalyptic number.

617479 is a deficient number, since it is larger than the sum of its proper divisors (1).

617479 is an equidigital number, since it uses as much as digits as its factorization.

617479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 34.

The square root of 617479 is about 785.7983201815. The cubic root of 617479 is about 85.1544596347.

The spelling of 617479 in words is "six hundred seventeen thousand, four hundred seventy-nine".